Standard Features:

  > Semi-suspension
  > Suspension stroke up
     to 1.6 in/ 40 mm
  > Weight adjustment
     range of 110-265 
     lbs./50-120 kg 
  > Fore/aft adjustment 

Optional Features:

  > Retractable seat belt
  > Adjustable armrests 
  > Operator presence switch

Downloads:

  > Grammer B12 Series Drawing
  > Grammer Full Line Aftermarket Brochure
  > Grammer B12 Series Operating Instructions
  > Replacement Kit References:
         - B12
         - GS12